Pixelfed places: a remote post's own place, shown and never federated again

A Note's `location` that is a Place with coordinates (Pixelfed sends
them as strings) is kept in the new Post.Place and shown as
Status.privapub.place {name, latitude, longitude, country}; an edit
replaces it. An Event's location stays its own `places`, and nothing
renders a place back out. Closes the INTEROP P2 Pixelfed location gap
and the ROADMAP long-tail item.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

PrivaPub/Federation/Objects/NoteParser.cs

@@ -1,4 +1,4 @@
-using PrivaPub.Models.Post;
+using PrivaPub.Models.Post;
 
 using System.Globalization;
 using System.Text;
@@ -44,6 +44,7 @@ namespace PrivaPub.Federation.Objects
 		public VideoDetails Video { get; init; }
 		public AudioDetails Audio { get; init; }
 		public EventDetails Event { get; init; }
+		public PostPlace Place { get; init; }
 	}
 
 	public static class NoteParser
@@ -110,7 +111,8 @@ namespace PrivaPub.Federation.Objects
 				Link = ObjectShapes.Link(note),
 				Video = ObjectShapes.Video(note),
 				Audio = ObjectShapes.Audio(note),
-				Event = ObjectShapes.Event(note)
+				Event = ObjectShapes.Event(note),
+				Place = ObjectShapes.NotePlace(note)
 			};
 		}